Tracking roller



FIG. 1 is a front, top perspective view of a tracking roller showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view of the other side thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of the holes on the tracking roller is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a tracking roller, as shown and described. 